摘要
采用汞盐和３种无汞盐重铬酸钾法进行实验比较研究，所得数据用单因素方差分析和多重比较法进行统计处理，表明在准确度方面各方法无显著差异，研究表明，采用铝粉还原法更简单．
We make the experimental comparitive research on the method of dichromic potassium of method mercurical salt and the method of immercurical salt. Adopted in some currently production government and relative teaching materials moreover. The gained data were counted and managed with methods of the single factor andlysis of variance and multiple comparison. The result inducated that theve were no obvious diffelence between the method of mercurial salt with the immercurial salt. And method of aluminum powder is more handy.
出处
《高师理科学刊》
2000年第2期41-42,共2页
Journal of Science of Teachers＇College and University
关键词
重铬酸钾法
无汞盐法
铁
测定
实验
Sigle factor analysis of variance Mercurial sale Immercurlal salt Multiple comparison Experimental research Dichromic potassium method
